/*
 * Copyright (C) 2009 JavaRosa
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package org.javarosa.core.model;

import org.javarosa.core.util.externalizable.Externalizable;

/**
 * An IDataReference is a reference to a value in a data
 * model.
 * 
 * @author Clayton Sims
 */
public interface IDataReference extends Externalizable {
	
	/**
	 * @return The data reference value
	 */
	Object getReference ();
	/**
	 * @param reference the data reference value to be set
	 */
	void setReference (Object reference); 
	
//	/**
//	 * @param reference A reference to be evaluated against this reference
//	 * @return true if the given data reference is associated with the same
//	 * data value as this reference.
//	 */
//	boolean referenceMatches(IDataReference reference);
//	
//	/** 
//	 * @return a new object that is a copy of this data reference
//	 */
//	IDataReference clone();
}
